Originally posted up by Dom in the ‘Original Trilogy Documentaries’ thread, and now moved into here…
’The Force of Sound’ - at the ABC News youtube channel. (2018, 26 mins long)
https://www.youtube.com/watch?v=GM0-8v4Ppb4
The blurb:-
“Writer-Director Rian Johnson and the Oscar-nominated sound team of “Star Wars: The Last Jedi” reveal the secrets used to give life to droids and creatures.”